This would explain your apparent confusion around the chargeback process.
1. They don't matter for unapproved charges and renewals because crypto doesn't allow charges at all.
2. They don't matter for buying from large sites like Amazon, Ebay, Google, etc. because these large sites will quickly freeze a user's account completely if a chargeback is introduced. Most orders these days go through the large sites.
3. Chargebacks filed with Visa/MC (not Amex) require substantial evidence and follow-up for them to succeed. They are not easy. The time spent on retrieving the money back is hardly worth it for someone with a full-time job.
2. Yes and thanks to modern trad-fi law, it’s incredibly easy to get refunds and returns on basically all retail websites.
3. Not true, trivially disproved by having gone through the process multiple times with various providers myself with minimal effort and documentation. I suggest you DYOR once too.
1. Regarding malicious smart contracts, they can steal only from incompetently written smart contracts.
2. Regarding refunds by large vendors, that's the ideal, but not the reality. I have had Uber reject a refund for unfair reasons when the driver was wasting time and didn't show up for over 15 minutes past the estimated time. I have also had Google provide me no refund for a large transaction on a scam app that fooled me.